The group is publicising booklets written by people who suffer from aphasia and other speech impairments.
The booklets, which aim to demonstrate the problems aphasia sufferers face on a daily basis, will be sold to raise money for the charity.
'We want to make people imagine what their lives would be like without language,' said Speakability head of fundraising and comms Melanie Derbyshire.
'We hope it will encourage them to give people time to get their words out, rather than make assumptions (that the aphasia sufferer) is stupid or drunk,' she added.
Local newspapers and health pages in the national press will be targeted.